A) 60
B) 600
C) 720
D) 400
Correct Answer: B
Solution :
The given equation of the plane 3x + 4y ? 5z ? 60 = 0, it can be written in the from \[\text{C}{{\text{u}}^{+}}=\left[ Ar \right]3{{d}^{10}}4{{s}^{0}}\Rightarrow 0\text{unpaired electron}\]which meets the coordinate axes at the points A(20, 0, 0) B(0, 15, 0) C(0, 0, -12). The coordinates of the origin are (0, 0, 0). Therefore, volume of the tetrahedron OABC is \[Zn=\left[ Ar \right]3{{d}^{10}}4{{s}^{0}}\Rightarrow 0\text{unpaired electron}\]
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